Question

Two interior angles of a triangle are 60digree and 70digree , find the measure of the third angle.​

Answer 1

Answer:

We know

that sum of all interior angles of a triangle are supplementary,that is all of there angles will make a sum of 180

Here,the angles are 60° and 70°

let the other angle be x

therefore

60+70+x=180

130+x=180

x=180-130

x=50°

therefore the remaining angle is of 50°

Answer 2

Answer:

Angel sum Property

Sum of all angels of a triangle is 180 .

Taking x as the 3rd angle .

X + 60 + 70 = 180

x + 130 = 180

x = 180 - 130

x = 50 .

So the 3rd angle is 50 degree .

Prove 70 + 60 + 50 = 180 .

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